Data Translation DT3155, User Manual

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Programming Flowcharts
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Set the Standard Controls for the Input Source
Set the hardware filter with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_INPUT_FILTER. Filter
settings are AC none, AC 50 Hz,
and AC 60 HZ. The default is AC none.
Set the video type with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_VIDEO_TYPE to
select a composite video input. The default is
composite.
Set the input sync source with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_CSYNC_SOURCE to
select the video input channel to use as the sync
source (0, 1, 2, or 3).
Set the input sync threshold with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_CSYNC_THRESH
to set the sync threshold for the selected input
group to either 50, 75, 100, or 125 mV. The
default is 125 mV.
Using
Sync
Sentinel?
Yes
Enable Sync Sentinel with
OlFgSetInputControlValue.
Use the key
OLC_FG_CTL_SYNC_SENTINEL. The
default is enabled (True).
Disable Sync Sentinel with
OlFgSetInputControlValue.
Return to the main flowchart.